Protective plates for bulkhead-openings and the like.



G. MAZZOLINI.

PBOTEGTIVE PLATES FOR BULKHEAD OPENINGS AND THE LIKE.

APPLICATION FILED APR. 6, 1910.

1,022,688. I Patented Apr.9, 1912.

WITNESSES! fag @W ioLUMmA PLANOGRAPH co., WASHINGTON. n. c.

GIU'SEPPE MAZZO-LINI, 0F NAPLES, ITALY.

PROTECTIVE PLATES FOR BULKHEAD-OPENINGS AND THE LIKE.

Specification of Letters Patent.

Patented Apr. 9, 1912.

Application filed April 6, 1910. Serial No. 553,865.

To all whom it may concern:

Be it known that I, Grusnrrn MAZZOLINI, a subject of the King of Italy,residing at Naples, Italy, gentleman, (whose post-oflice address is 145Via Santa Lucia, Naples,

Italy,) have invented certain new and useful Improvements in ProtectivePlates forBulkhead-Openings and the Like, of which the following is aspecification.

In order to protect the frames of doors, ship hatchways, etc, formingwatertight closures and to prevent the accumulation of foreign bodies,such as coal, nails, particles of wood and iron, on them or rather onthe places where they must be tightly closed, the present inventionprovides the arranging of protecting iron plates on the sills and on thejambs of the door frames, which plates turn on hinges and are inengagement with each other in such manner that at the closing of thedoor the vertical plates are turned inwardly, and the sill plate isturned upwardly.

A form of construction of the protective device is shown in Figure 1 inperspective view and in Fig. 2 in horizontal section.

The protective device is rotatably fastened to the door-frame, and thepart 6 which protects the sill, is at its ends turned up at right angles(Z and 2'. The vertical sidepieces 0 and g are, at their lower ends,partly rounded and in addition they are at certain places provided withhelicoidal projections f and h, which engage the turned up ends (Z and2' of the part a which covers the sill. hen the door, which is built asa sliding door, moves from A to B across the opening, it strikes part 0and consequently the latter rotates on its hinges. In this rotarymovement, the part 0 presses with its projection f against the turned uppart (Z of the part c, which covers the sill, and the latter is rotatedon its hinges, whereupon the other bent part i, exerts a certainpressure on the projection h of the part g, and causes a rotary movementof part 9 on its hinges.

Having described the invention, what I claim is:

1. In combination with a door frame, a sill plate hinged at one side ofthe frame and having upturned ends and a pair of jamb plates hinged atthe same side of the frame and at opposite sides of the opening, the

lower end of one of said jamb plates being adapted when rotated toengage the outer surface of one of the upturned ends of said sill plateand the lower end of the other of said j amb plates being engaged by theinner surface of the other upturned end of said sill plate as the latterplate rotates about its hinges, whereby as the door is closed all ofsaid plates will be rotated about their hinges.

2. In combination with a door frame, a sill plate hinged at one side ofthe frame and having upturned ends, and a pair of jamb plates hinged atthe same side of the frame and at opposite sides of the opening, thelower end of one of said jamb plates being adapted, when rotated, toengage the outer surface of one of the upturned ends of said sill plateand the lower end of the other of said amb plates being engaged by theinner surface of the other upturned end of said sill plate, as thelatter plate rotates about its hinges, the said jamb plates beingprovided with projections with which the upturned ends of said sillplate engage, whereby as the door is closed all of said plates will berotated about their hinges.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GIUSEPPE MAZZOLINI. lVitnesses:

VINOENZO PALLADINO, NIooLo GUARINI.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Eatents, Washington, D. G.

